Cancer Alley is an area along the Mississippi River between Baton Rouge and New Orleans, Louisiana which contains hundreds of hazardous waste sites from mines, factories and chemical plants. The plants were located along the Mississippi to facilitate shipping, but have now resulted in Louisiana, one of the most impoverished areas of the country, becoming the most polluted. Although there have been numerous studies documenting unusually high rates of brain tumors among children, the local and state governments have been slow to act.